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CISA · Question #177

Which of the following BEST helps data loss prevention (DLP) tools detect movement of sensitive data in transit?

The correct answer is B. Deep packet inspection. DLP tools detect sensitive data in transit by examining the actual content of network packets. Deep packet inspection (DPI) (B) looks beyond headers into the payload of packets, allowing DLP tools to match patterns (e.g., credit card numbers, SSNs, classified keywords) within the

Submitted by rachelw· Apr 18, 2026Protection of Information Assets

Question

Which of the following BEST helps data loss prevention (DLP) tools detect movement of sensitive data in transit?

Options

  • ANetwork traffic logs
  • BDeep packet inspection
  • CData inventory
  • DProprietary encryption

How the community answered

(36 responses)
  • B
    92% (33)
  • C
    3% (1)
  • D
    6% (2)

Explanation

DLP tools detect sensitive data in transit by examining the actual content of network packets. Deep packet inspection (DPI) (B) looks beyond headers into the payload of packets, allowing DLP tools to match patterns (e.g., credit card numbers, SSNs, classified keywords) within the data stream. Network traffic logs (A) capture connection metadata (source, destination, volume) but not content, making sensitive data identification impossible. Data inventory (C) maps where data resides but does not monitor movement. Proprietary encryption (D) would obscure packet content, actually preventing DLP inspection rather than enabling it.

Topics

#Data Loss Prevention#Deep Packet Inspection#Data Protection#Network Security

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